ἀπρόσοδος
From LSJ
τί ἦ μοι ταῦτα περὶ δρῦν ἢ περὶ πέτρην → but what is this to me, about an oak or a rock | but what are these things about a tree or a rock to me | why all this about trees and rocks | why all this about what we have nothing to do with | but why am I off on this tangent
English (LSJ)
ον,
A without approach, inaccessible, βίος Phryn.Com. 18; ὄρη Procop.Goth.4.16. II not yielding a return, unproductive, Phld. Oec.p.35J.